Audible alarm for vehicles.



H. MORGAN.

AUDIBLE ALARM FOR VEHICLES.

APPLICATION FILED JAN. 24, I917.

Patented Oct. 30, 1917.

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AUDIBLE Specification of Letters Patent.

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Application filed January 24, 1917. Serial No. 144,127.

To all whom it may concern:

Be it known that'I, HOWARD MORGAN, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and Improved Audible Alarm for Vehicles, of which the following is a full, clear, and exact description.

This invention relates to safety appliances for vehicles and has particular reference to means designed to prevent the theft or loss of such machines.

Among the objects of the invention is to provide a simple and effective form of construction of audible alarm adapted particularly for use in connection with automobiles or other road vehicles, the same including a cage or casing within which is located an audible device, such as a bell or gong and a shiftable actuator adapted in one position to cause the gong to sound, the actuator being splined or otherwise so secured to the rotating shaft journaled in the cage as to be efiective when the machine is in operation and the owner is absent.

Another object of the invention is to provide an audible safety alarm under the control of the owner or operator of the vehicle through the manipulation. of a key or its equivalent.

With the foregoing and other objects in view the invention-consists in the arrange ment and combination of parts hereinafter described and claimed," and while the in vention is not restricted to the exact details of construction disclosed or suggested herein,

still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanyingdrawings, in which like reference characters designate the. same parts in the several views, and in wh1ch- Figure 1 is a view in elevation of the prin- 'cipal parts of my improvement, one portion of the or cage being removed for a,

better disclosure of the operating parts;

Fig. 2 is a horizontal sectional view on the line 2-2 of Fig. lyaiid Fig. 3 is a vertical transverse section on the line 3-3 of Fig,

Referring now more particularly to the drawings, for an indication of one practical method of carrying out this improvement, I show at 10 a shaft adapted to rotate when the vehicle is in motion, This shaft may be any convenient element of the or power devices such, for instance, as the longitudinal driving shaft between the clutch and the differential, but since these parts are well known in the art, it is deemed unnecessary or inadvisable'to illustrate the same. For the purpose of this specification, therefore, the shaft 10 will be regarded as a power shaft journaled for rotation in the bearings (not shown) and in a casing- 11 secured rigidly andpermanently upon or beneath any suitable part of the frame 12 by means of bolts 13 or their equivalent.

Within the casing is secured a sounder or audible alarm device represented as a gong '14, but which will typify any equivalent means for producing a loud sound at the desired time. This gong is indicated as secured upon a post 15 attached to one side of the casing. Adjacent to the gong is supported a hammer or clapper 16 having a.

' to the axis of the shaft and in a plane spaced to one side from the general plane of the gong- Fixed upon the shaft within the casing and rotatable therewith, is a sleeve or collar 19 having end flanges 20 making a structure substantially spool shaped. This sleeve car- -ries a rotary actuator 21 comprising a high 22 and a circular series of lmobs or projections 23. These projections are all of the same length, and, lie preferably all in the gratifiplane perpendicular to the axis of the The actuator hub is provided with a circnmferential groove 24 at one end, with whlch cooperates a yoke 25 having means to [manipulate the yoke for the purpose of sliding or shifting the actuator endwi'se along the spool or sleeve, or holding it in any desired position with respect to the gong. 28 indicates a spline or feather providing for sliding movement of the actuator along the sleeve, but insuring the rotation of the same with the sleeve and shaft. The flanges 28 serve to positively limit the shifting movement of the actuator, although the yoke connection serves ordinarily for this purpose.

Any suitable means may be provided to ,the pivots 32 and other and the axis of the rock shaft.

. Fig. 2, with control the operation of the yoke and the shifting of the actuator. I provide, however, for this purpose a key-controlled rock shaft 27 journaled in a lock casing 28, with which cooperates a suitable key 29 under the control of the owner or operator of the hannmer. The connections between the rock "shaft and the yoke consist of a crank 30 and a link 31, the link being pivoted at one end at 32 to the free end of the crank and at its other end at 33 to the yoke. The axes of 33 are parallel to each With the key 29 introduced into the lock, the rock shaft may be given a partial rotation in a clockwise direction as viewed in the result that the yoke will be moved toward the gong and will shift the actuator therewith, so asto cause the plane of the points of the projections 23 to pass beyond the plane of the tongue 17 of the clapper, as indicated in dottedhnes in Fig.

2. It will be understood that the crank 30 and link 31 are always maintained in planes closely parallel to each other, and that the connections between the same'and the yoke are such that the yoke is always held from rotation while the actuator is free to rotate with the shaft and sleeve irrespective of the shifting of the actuator along the sleeve. After the rock shaft is rotated as above de scribed and the actuator is shifted toward the gong, said shaft will again be locked in position and the key removed. Under these conditions, if a stranger or other unauthorized person attempts to steal the vehicle and starts the same into operation, the rotation of the shaft and actuator will cause the points of the projections 23 to impinge in quick succession against-the portion of .1. iaeaoic the clapper parallel to the shaft with a corresponding sounding of the gong through the flexibility of the tongue. The unauthorized operator will, therefore, not only be surprised at the alarm'given, but will be unable to stop the sounding thereof, except by stopping the vehicle. If, however, he persists in trying to make away with the Vehicle, the will be apprised of the fact, and the logical result will be that the owner will duly recover his property. The device is simple and cheap of construction, may be easily applied to practically any road vehicle and is not likely to get out of order. When operated with authority the device is noiseless and inconspicuous.

ll claim:

in a device of the class set forth, the combination of a casing, a gong fixed 1n position within the casing, a clapper located adgacent to the gong and with the tongue portion thereof lying in a plane parallel to and at one side of the plane of the. gong, a rotating shaft extending through the casing, a sleeve fixed to the shaft within the casing, a rotary actuator splined to the sleeve for rotation therewith and endwise movement thereon, said actuator including a series of projections lying normally in a plane remote from the plane of the gong tongue, a keycontrolled rock shaft projectin into the casing, the axis of the rock sha t being at one side of and perpendicular to the axis of the rotating shaft, and connections between the rock shaft and the actuator whereby the actuator. may be adjusted to bring the pro:

jections thereof within the plane of the tongue to cause the sounding of the gong when the first-mentioned shaft is rotated, said connections comprising a crank connected to the rock shaft, a yoke engaging the sleeve, and a link pivoted to both the yoke and the crank.

HGWAJRD MQRGAN.

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